#!bin/bash
function s1_hello() {
  echo "hello,world!"
}
function s2_tell_who_i_am(){
  echo "root"
}
function s3_which_distro_do_i_use(){
  echo NAME="\"CentOS Linux\""
}
function s4_view_my_cpu_arch(){
  uanme -m
}
function s5_show_first_scsi_disk_size(){
  lsblk -l \grep disk | \grep '^sda ' |awk '{print $4}'
}
function s6_show_main_memory_size_in_megabytes(){
  free -m |grep "Mem:" | awk '{print $2}'
}

